It won't work in dosbox.

any ways to make it work?

Don't know, there are several slowdown programs that you can use together with vdmsound.

Any link to abandonware is forbidden. We do not support abandonware on this forum. Go to the website where you got the game and ask them.

The fact is I own the original B-disk 😀 Will it help if I share the program for anyone who can troubleshoot it?

Seems like it is a problematic game for DOSBox:

http://www.dosbox.com/comp_list.php?showID=1592

It is a known issue: Mirage Thunder: Dif-2 and the mysterious opcode...

There are good reasons for not supporting the intentional use of illegal CPU instructions.

> There are good reasons for not supporting the intentional use of illegal CPU instructions.

Tell Microsoft 😉

Maybe try this altered DOSBox version (as proposed by jmk) for this particular game. Please don't use it for anything else.

Yes, it works with this one.

I had an idea of how to make this game more DOSBox-friendly, but it involved hacking the executable, and that's not the best approach. I took the same general idea and turned it into a patch loader program that makes the necessary modifications in memory, so nothing is permanently changed. Run DIF2FIX.COM from the same directory where DIF-2.EXE is located. The included source code has some comments explaining the modifications.

RayDream, please check if the loader works correctly with your original, unmodified executable, as the one I tested with has clearly had its copy protection neutered. The game sometimes locks up when exiting back to DOS, but that happens even without my program.

Great work! Your patch works with official DOSBox 0.72, but I also tried an already cracked executable version.

yea it works! thanks a million! You save my life!